P1564 Code - ASCD Switch Malfunction
Quick Answer
The P1564 OBD-II diagnostic trouble code indicates a malfunction in the ASCD (Automatic Speed Control Device) switch. Common causes include Faulty ASCD switch, Wiring issues or electrical connection problems related to the ASCD switch, Malfunctioning cruise control module. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P1564 indicates ASCD Switch Malfunction.
- Common causes
- Common causes include Faulty ASCD switch, Wiring issues or electrical connection problems related to the ASCD switch, Malfunctioning cruise control module.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code P1564 Description
The P1564 OBD-II diagnostic trouble code indicates a malfunction in the ASCD (Automatic Speed Control Device) switch. The ASCD switch is a component of the cruise control system in a vehicle. When this switch malfunctions, it can lead to issues with the vehicle's cruise control system, resulting in the inability to set or maintain a constant speed while driving. This can impact the overall performance and driving experience of the vehicle.
Common Causes of P1564
- Faulty ASCD switch.
- Wiring issues or electrical connection problems related to the ASCD switch.
- Malfunctioning cruise control module.
- ECM (Engine Control Module) communication issues.
- Mechanical problems within the cruise control system.
Symptoms of P1564
- Inability to set or maintain a constant speed using cruise control.
- Cruise control system not engaging or disengaging properly.
- Erratic speed fluctuations while using cruise control.
- Check Engine Light illuminated on the dashboard.
- Decreased fuel efficiency.
How to Fix P1564
- Begin by diagnosing the root cause of the issue by using an OBD-II scanner to retrieve the specific trouble code.
- Inspect the ASCD switch and its wiring for any signs of damage or corrosion. Replace the switch if necessary.
- Check the cruise control module and ECM for proper functionality. Replace or repair any faulty components.
- Clear the error code from the vehicle's ECM using the OBD-II scanner.
- Test the cruise control system to ensure that the issue has been resolved and that the ASCD switch is functioning correctly.
Cost to Fix P1564
The cost of repairing an ASCD switch malfunction can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the repair costs for this issue can range from $100 to $300, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple sources before proceeding with the repair.
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Code P1564 Information for Specific Makes
- P1564 Audi — Idle Speed Control Throttle Position Low Voltage During Adaption
- P1564 BMW — Control Module Selection
- P1564 Buick — Cruise Control System Vehicle Acceleration Too High
- P1564 Cadillac — Cruise Control System Vehicle Acceleration Too High
- P1564 Chevrolet — Cruise Control System Vehicle Acceleration Too High
- P1564 GMC — Cruise Control System Vehicle Acceleration Too High
- P1564 Infiniti — ASCD Steering Switch
- P1564 MINI — Control Module Selection
- P1564 Mitsubishi — Auto-Cruise Control Switch System
- P1564 Nissan — ASCD Steering Switch
- P1564 Volkswagen — Idle Speed Control Throttle Position Low Voltage During Adaption
Frequently Asked Questions about P1564 Code
1. What are the common symptoms of OBDII code P1564 (ASCD Switch Malfunction)?
The common symptoms of P1564 include the cruise control system not functioning properly, the inability to set or maintain a set speed, and illumination of the check engine light.
2. What causes the ASCD Switch Malfunction code P1564?
This code is typically triggered by a faulty ASCD (Automatic Speed Control Device) switch, wiring issues, or a problem with the cruise control system's components.
3. How can I diagnose the ASCD Switch Malfunction code P1564?
To diagnose P1564, you can visually inspect the ASCD switch and its wiring for any visible damage, use a multimeter to check for proper continuity, and perform a cruise control system test using a scan tool.
4. Can a bad ASCD switch cause other issues besides the P1564 code?
Yes, a malfunctioning ASCD switch can lead to other problems such as erratic cruise control operation, inability to set or maintain speed, and potential safety concerns while driving on highways.
5. How can I repair the ASCD Switch Malfunction code P1564?
Repairing P1564 usually involves replacing the faulty ASCD switch, repairing damaged wiring, or addressing any underlying issues within the cruise control system as necessary.
6. Is it safe to continue driving with the ASCD Switch Malfunction code P1564?
While driving with P1564 may not pose an immediate safety threat, it is recommended to address the issue promptly to ensure the proper functioning of the cruise control system and avoid potential driving discomfort.
7. Will resetting the OBDII code P1564 make it go away permanently?
Resetting the code may temporarily clear the check engine light, but if the underlying issue such as a faulty ASCD switch or wiring problem persists, the code is likely to return until the problem is resolved.
8. Can a DIY enthusiast fix the ASCD Switch Malfunction code P1564?
Depending on your skill level and access to tools, DIY enthusiasts may be able to address P1564 by replacing the ASCD switch or repairing wiring. However, professional diagnosis and repair may be recommended for complex issues.
9. Is it necessary to visit a mechanic for OBDII code P1564 diagnosis and repair?
While it is possible to diagnose and repair P1564 on your own, consulting a mechanic or automotive technician with experience in cruise control systems can help ensure an accurate diagnosis and proper repair of the issue.
10. How much does it typically cost to fix the ASCD Switch Malfunction code P1564?
The cost of fixing P1564 can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to replace the ASCD switch yourself or have a professional technician perform the repair.
Discuss the causes and fixes for P1564 OBDII Code
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I had the P2138 & P1564, but besides the codes i had a ABS, TRC, SLIP LIGHT ON, ALSO THE EMERGENCY LIGHT ON THE DASH WAS ON.
I did not have acceleration when I pressed on the accelerator the car move very slow (safe mode or limp mode)This is how I fixed, I changed the camshaft sensor bank 2 close to the firewall.
remember there are two cam shafts bank1 and bank2.then
I did the relearning procedure for the accelerator pedal, you can
google it you can easily find the procedure. then my mini van was
working fine, went for test around the block then the car went into safe
mode (no acceleration again), the reason my car was going into safe
mode was because the piston on the break on the caliper was stocked. so
the ABS SENSOR was detecting that something is wrong and was puttin the
car into safe mode
I order a new caliper installed and now everything is working fine.
hope this help people out and save some money.
my minivan was 2004 nissan quest, but this solution can be applied to all cars
thanks -
Was your car in an accident or have you removed the steering wheel? If the answer is NO, then you have to replace the cruise control switch to fix the problem.
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